= 40  
= ?  
= ?  
= 40  
= 38  = 36  = ?  = ? 
Each traffic sign stands for a number. Some of the sums of rows or columns are shown. What numbers might the signs stand for?
[Teacher: Press the F11 key and hide the remaining toolbar to show the whole of this grid if it doesn't fit on your screen]
Topics: Starter  Algebra  Logic  Problem Solving  Puzzles  Simultaneous Equations
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Previous Day  This starter is for 11 March  Next Day
= 9  = 9  
= 11  = 9 
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The answer to this puzzle is not 12. What is it?
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